From: Matt Porter <porter@cox.net>
To: Nageswari S <nageswari@sanyo.co.in>
Cc: "'linuxppc-embedded@lists.linuxppc.org'"
<linuxppc-embedded@lists.linuxppc.org>
Subject: Re: USB - Interrupt problem
Date: Mon, 18 Nov 2002 08:11:24 -0700 [thread overview]
Message-ID: <20021118081124.B31148@home.com> (raw)
In-Reply-To: <6DF87017DA95D611AC6000606730DE9B1B51D5@BLREXSR>; from nageswari@sanyo.co.in on Mon, Nov 18, 2002 at 11:56:04AM +0530
On Mon, Nov 18, 2002 at 11:56:04AM +0530, Nageswari S wrote:
> but, there is no change in interrupts when I connect a USB device.
> cat /proc/interrupts output is
>
>
> CPU0
> 2: 119608 405IAP UIC Edge NE2000
> 11: 1 405IAP UIC Edge usb-ohci
> 29: 604 405IAP UIC Edge keyboard
> BAD: 0
>
> Also, whatever device I connect, it does not get listed in
> /proc/bus/usb/devices
> Could anybody please tell me as to where the problem is regarding the
> interrupts.
>
>
> Any help or suggestion would be very helpful....
Couple options off the top of my head:
1) Check your triggering/polarity for the ohci device. Are you
sure the UIC is set correctly for this device? Is this something
custom hanging off the ebc?
2) You have a bug in your custom ohci HCI driver which causes it
to stall before device insertion. Verify whatever status register
ohci has that it is still running (I dunno, only know uhci stuffs
here).
Regards,
--
Matt Porter
porter@cox.net
This is Linux Country. On a quiet night, you can hear Windows reboot.
** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
prev parent reply other threads:[~2002-11-18 15:11 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-11-18 6:26 USB - Interrupt problem Nageswari S
2002-11-18 15:11 ` Matt Porter [this message]
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